Dumping truck



Jan. 12 1926V 1,569,707

G. M. BUNNELL l DUMPING TRUCK Filed March 29. 1922 3 Sheets-Sheet 1 Jan. 12 ,i926

G. M. BUNNELL DUMPING TRUCK Filed Mrch 29. 1922 5. Sheets-Sheet 2 gru/067Mo@ GusseMBurmeu Jan. 12,1926. l 1,569,707

G. M. BUNNELL DUMPING TRUCK Filed March' 29. 1922 s sheets-sheet s GussieMBunnell Patented J an.. 12, 1926.

glatam? aussie M. 'BNNEVLL on iviiAiviI,*r1.oia1niirk DUMPING TRUCK. y

Application inegi March 29, 1922. serial 110.5117393.

To all whom t may concern.' v A Beit known that I, GUssin M. BUNNELL, arcitizen of the United States, residing at Miami, in the county of Dade and State of Florida, have invented certain new and useful Improvements in Dumping Trucks, ofv

which the following is a specification. c,

My said invention relates to a truck having dumping means under the control of the operator and it is an object of the Same tov provide a device of the character clescribed with means whereby the power of the engine may be utilized for the purpose of dumping the load. f l n A further object of the invention is to provide power-operated dumping means which shall be applicable to trucks ofdifferent types without material alteration.

Referring to the accompanying drawings which are made a part hereof and on which similar reference characters indicate similar parts. y

Figure 1 is-aside elevation of soymuch of a truck as is necessary toa disclosure of the present invention,

Figure 2 is a fragmentary plan of certain parts shown in Figure 1, A

Figure 3 is a plan of a modifiedy form, n

Figure 1 a side elevation of thepsame having parts of the body broken away to show the internal arrangement,

Figure 5, a side elevation ofvanother modification with parts broken away, and

Figure 6 a plan of said modification.

In the drawings 10 indicates the body of a truck having side members l1 and having a floor provided with rollers 12. An inner body 13 is adapted to move on the rollers and is provided with trunnions 14 slidably mounted between two of the side members and limited as to their rearward movement by U-shaped metallic members 'l5 fixed to said side members at the rear end thereof. In Figure 1 this auxiliary body is shown in dumping position.

For moving it from dumping position to loading position and vice versa, a pair of cables 16 and 17 are attachedr to the upper or forward end of the inner body at one end. The cable 16 passes under a guide pulley 18 and beneath the rollers 12 to the forward part of a truckwhere it is secured to and adapted to be wound on a spool 19. Cable 17 passes directly forward to a simi'- lar spool 20. These spools yare located Aon al transverse shaft 21 having splined thereto y the truck the sprocket chain is v -tion by mechanism comprising an engine a` reversing clutch member 22. This reversing clutch' .member .has teeth at cach end adapted toengage corresponding teeth on one o 'r tliefotlier of said spools 19y and 20.

v A worm wheel adjacent one endythereof and `this worin wheel isrdrivenfby a worm 24C ona longitudinal shaft 25.

shaft 27 which is similarly an engine shaft 29 which shaft vor may be. the main having the transmission end of the main shaft.

may bela jackshaft in trucks A clutch member l30l splined on the enginek shaft serves to dumping meclia-k nism or disconnect'ittherefromas desi'red. ff Y In the modification shown in F igures3 and I 75. identical with that heretofore described,` save that the shaft 21fcarries-only a singleV connect the shaft to the 4 the operating mechanism is substantially the truck, being carried bodily backward by the supporting means. At the forward y The latter shaft is geared Aby, a silentV chain or like device 26 to a gearing at the refarVV 23 is secured. to shaft 2l geared at 23v to? end of the flexible load-support a cable 38 is secured thereto which is also secured to spool 20 and adapted to be wound thereabout. As the load is dumped the cable unwinds from the spool 20, the clutches at 30, and 32 beingl closed to' drive the sprocket gearing for this ter the load has been dumped the clutch 32 is thrown out and vclutch 22 is thrown in to drive the spool 20 and `wind up the cable which draws the load-support back to the position shown in Figure 3.

Inlthe modifications 5 and 6 the load-support less floor on the order this floor havingk cross sprocket chains L10 at the sides.

comprises an -endshaft having a clutch 30, the engine shaft driving a worm shaft 25 through a silent shown.k `in Figures i purpose and of a'belt conveyor, slatsi39 secured to'` p To unload f set'in moiio i chain or the like. Shaft 25 drives a transverse shaft 21 by means of wormgearing and the latter shaft is connected by-sproclret gearing to another transverse shaft Lll which carries spaced gears over which pass the sprocket chains of the load-sustaining device.

The devices above described serve to il lustrate different embodiments of the prin ciple of my invention as applied to trucks of different types. v It will be obvious, however, to those skilled in the art that numerous other Vchanges may be made in Vthe device `of my invention for the purpose of applying the same to other types of trucks or for other purposes all without departing from the spirit, of my invention,

the true scope of which is indicated in the Aappended claim.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is 2- A truck having a body and an engine shaft, side members comprising spaced horizontally disposed slats carried by said body, a U-shaped member between the bottom pair of slats of each side memberadjacent its rear end, the inner faces ofthe U-shaped member being `flushwith the respective slats, an inner .body adaptedv to l-slide longitudinally of said truck body and adapted to tilt at the conclusion of its rearwardly sliding movement said inner body having a trunnion at each side disposed between the bottom pair of slats and adapted to engage the curved portion of the U-shaped member to limit the rearward movement of the inner body, a transverse shaft lat the forward end `of thetruclr,` means connecting said shaft in driving relation with the engine shaft, a pair of spools loosely mounted on the transverse shaft, a single clutch member between. the spools andsplined to the shaft whereby either spool may be driven by the transverse shaft, a pair of cables connected to the forward end of said inner body and adapted to be wound upon said spools for dumping the said inner body and restoring the same to its original position, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Washington, District of Columbia, this 28th day of MarclnA. l). nineteen hundred and twentytwo. i

GUSSE M. BUNNELL. [ns] 

